At your first sevice change to syn oil. It helped some on mine.

 

Im going to have them use my Amsoil

 

I’m having similar issues with my M8 softail. Almost sounds like primary noise. I’ll take it to dealer early next week and let them take it for s quick spin and get their opinion. Anyone else with similar on a M8

 

Mine has had noise between 2000- 3000 rpm sence new. It been dynoed a few times tried different lifters,different preload on push rods, Different brands of oil and.noise is still there. Its deffently quieter with non synthetic oil.
I have been told by many it's normal. Twin cams make noise. Just make sure that's not a exhaust leak.

 

I've had a number of bikes that made that noise at that RPM, including my current RoadKing. Never had a problem.

 

I just take out my hearing aids and then it sounds just right

 

There is a cure for twin cams (see my website)

For the M8 Harley originally had the same top end arrangement as the TC engine. Before final production they changed to a system where the bolt goes through the shaft rather than next to it. This stopped the rocker shaft tapping.

Did I mention they had my product in hand while developing the M8?

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